Gas pathway distribution assembly, oxygen production mechanism, and medical device

Abstract

The present application relates to a gas pathway distribution assembly, an oxygen production mechanism, and a medical device. The gas pathway distribution assembly comprises a first gas pathway plate, a second gas pathway plate, and a third gas pathway plate that are stacked. A first gas pathway and a second gas pathway are formed between the first gas pathway plate and the second gas pathway plate. A third gas pathway is formed between the third gas pathway plate and the second gas pathway plate and is configured for storing or discharging oxygen. When oxygen is introduced into the first gas pathway, the oxygen flushes an adsorptive oxygen production assembly corresponding to the second gas pathway, and when oxygen is introduced into the second gas pathway, the oxygen flushes an adsorptive oxygen production assembly corresponding to the first gas path. The gas pathways formed in this way can meet the requirements of adsorptive oxygen production and waste gas processing and require fewer parts, thus possessing lower requirements on the use of parts and assembly, compactness, and better maintainability and detectability. The present application can effectively solve the problems of low space utilization rates and poor maintainability due to the use of pipes and joints for gas pathway distribution in oxygen production mechanisms in the prior art.

Description

Gas distribution components, oxygen generators and medical equipment

[0001] This application claims priority to the Chinese patent application filed with the China Patent Office on January 10, 2024, with application number 202410047120.0 and invention name “Gas Path Distribution Assembly, Oxygen Generator and Medical Equipment”, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The present application relates to the technical field of oxygen production equipment components, and in particular to a gas distribution assembly, an oxygen production mechanism, and medical equipment. Background Art

[0003] With the gradual development of medical technology, the equipment used in medical operations is also being gradually updated. Oxygen inhalation, as a common clinical quality method, can correct hypoxia and increase arterial oxygen partial pressure and blood oxygen saturation levels, and is relatively widely used.

[0004] Oxygen generators commonly use an adsorption-based oxygen production method, using air as a raw material for separation and production. This oxygen is then transported to oxygen storage cylinders or users via gas pipelines. In existing technologies, after oxygen is produced, it must be connected and controlled through multiple pipes, connectors, and valves. The installation of these pipes and connectors requires specific angles and space, resulting in numerous connection points, low space utilization, and poor maintainability.

[0005] Utility Model Content

[0006] The present application provides an air distribution assembly, an oxygen generator, and a medical device to solve the problems in the prior art of using multiple pipes and joints for air distribution inside the oxygen generator, resulting in low space utilization and poor maintainability.

[0007] In a first aspect, the present application provides an air path distribution component, which is connected to two adsorption oxygen production components of an oxygen production mechanism, including: a stacked first air path plate, a second air path plate and a third air path plate, wherein a first air path and a second air path are formed between the first air path plate and the second air path plate, and the first air path and the second air path are respectively connected to the two adsorption oxygen production components; a third air path is formed between the third air path plate and the second air path plate, and the third air path is respectively connected to the first air path and the second air path, and an output end of the third air path is used for storing or discharging oxygen; a distribution air path, which is respectively connected to the first air path and the second air path, and when oxygen is introduced into the first air path, the oxygen flushes the adsorption oxygen production component corresponding to the second air path through the distribution air path; when oxygen is introduced into the second air path, the oxygen flushes the adsorption oxygen production component corresponding to the first air path through the distribution air path.

[0008] According to some embodiments of the present application, a first one-way valve is provided between the first air circuit and the third air circuit, a second one-way valve is provided between the second air circuit and the third air circuit, and the output end of the distribution air circuit is respectively connected to the input end of the first one-way valve and the input end of the second one-way valve.

[0009] According to some embodiments of the present application, the input end of the distribution gas circuit is connected to the third gas circuit through a first control valve.

[0010] According to some embodiments of the present application, the distribution gas circuit is provided with two output ports, and the two output ports are respectively provided with a third one-way valve and a fourth one-way valve. The output end of the third one-way valve is connected to the first gas circuit, and the fourth one-way valve is connected to the second gas circuit.

[0011] According to some embodiments of the present application, a second control valve for direct communication is provided between the first gas path and the second gas path.

[0012] According to some embodiments of the present application, the gas circuit distribution assembly includes a valve seat connected to a side of the third gas circuit plate away from the second gas circuit plate, and the first control valve and the second control valve are fixed in the valve seat.

[0013] According to some embodiments of the present application, the inlet end of the first gas circuit and the inlet end of the second gas circuit are both arranged on the side of the second gas circuit plate away from the first gas circuit plate, and the inlet end of the first gas circuit and the inlet end of the second gas circuit are both separated from the valve seat, and the two adsorption oxygen production components are located in the space formed by the valve seat and the second gas circuit plate.

[0014] According to some embodiments of the present application, a first seal is provided between the first air circuit plate and the second air circuit plate, and the first seal is adapted to the first air circuit and the second air circuit; a second seal is provided between the second air circuit plate and the third air circuit plate, and the second seal is adapted to the third air circuit.

[0015] According to some embodiments of the present application, the third gas circuit includes an oxygen storage circuit and an oxygen exhaust circuit, the oxygen storage circuit is connected to the first gas circuit and the second gas circuit respectively, and the oxygen exhaust circuit is connected to the oxygen storage circuit through a third control valve.

[0016] In the second aspect, the present application provides an oxygen production mechanism, including an air path distribution component and two adsorption oxygen production components, the air path distribution component is the above-mentioned air path distribution component, and the first air path and the second air path of the air path distribution component are respectively connected to the two adsorption oxygen production components.

[0017] In a third aspect, the present application provides a medical device, which includes the oxygen production mechanism as described above.

[0018] The above technical solution provided by the embodiment of the present application has the following advantages compared with the prior art:

[0019] The embodiment of the present application provides an air path distribution component, an oxygen production mechanism, and a medical device, wherein the air path distribution component includes: a first air path plate, a second air path plate, and a third air path plate stacked together, wherein a first air path and a second air path are formed between the first air path plate and the second air path plate, and the first air path and the second air path are respectively connected to two adsorption oxygen production components; a third air path is formed between the third air path plate and the second air path plate, and the third air path is respectively connected to the first air path and the second air path, and the output end of the third air path is used for oxygen storage or oxygen discharge; a distribution air path is respectively connected to the first air path and the second air path, and when oxygen is introduced into the first air path, the oxygen flushes the adsorption oxygen production component corresponding to the second air path through the distribution air path; when oxygen is introduced into the second air path, the oxygen flushes the adsorption oxygen production component corresponding to the first air path through the distribution air path. The air path formed by such a setting can meet the needs of adsorption oxygen production and waste gas treatment, does not require pipe connection processing, has fewer parts, reduces the use and assembly requirements of parts, has high space utilization, and is more maintainable and detectable. The present application effectively solves the problem in the prior art that multiple pipes and joints are used for gas distribution inside the oxygen production mechanism, resulting in low space utilization and poor maintainability. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0021] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0022] One or more embodiments are exemplarily illustrated by pictures in the corresponding drawings. These exemplifications do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings are represented as similar elements. Unless otherwise stated, the figures in the drawings do not constitute proportional limitations.

[0023] FIG1 shows a schematic front view of a gas path distribution assembly provided by an embodiment of the present application;

[0024] FIG2 shows a schematic cross-sectional view of the gas distribution assembly of FIG1 along the AA direction;

[0025] FIG3 shows an exploded schematic diagram of the gas distribution assembly of FIG1 ;

[0026] FIG4 shows a schematic diagram of the principle of the gas distribution assembly of FIG1 ;

[0027] FIG5 shows a schematic structural diagram of the first gas path and the second gas path of the gas path distribution assembly of FIG1 ;

[0028] FIG. 6 shows a schematic structural diagram of the distribution gas path and the third gas path of the gas path distribution assembly in FIG. 1 .

[0029] Among them, the above-mentioned drawings include the following figure marks: 10, first air circuit plate; 11, first air circuit; 12, second air circuit; 13, first one-way valve; 14, second one-way valve; 15, cover body; 20, second air circuit plate; 21, air inlet head; 30, third air circuit plate; 31, third air circuit; 311, oxygen storage circuit; 312, oxygen exhaust circuit; 313, third control valve; 314, oxygen storage structure; 32, mounting hole; 40, distribution air circuit; 41, first control valve; 42, third one-way valve; 43, fourth one-way valve; 50, second control valve; 60, valve seat; 71, first sealing member; 72, second sealing member. DETAILED DESCRIPTION

[0030] To make the purpose, technical solutions, and advantages of the embodiments of this application more clear, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the drawings in the embodiments of this application. Obviously, the described embodiments are part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0031] The disclosure below provides many different embodiments or examples for implementing different structures of the present application. In order to simplify the disclosure of the present application, the components and settings of specific examples are described below. Of course, these are merely examples and are not intended to limit the present application. In addition, the present application may repeat reference numbers and / or letters in different examples. Such repetition is for the purpose of simplicity and clarity and does not in itself indicate the relationship between the various embodiments and / or settings discussed.

[0032] For ease of description, spatially relative terms may be used herein to describe the relative position or movement of one element or feature relative to another element or feature as shown in the figures, such as "inside," "outside," "inside," "outside," "below," "beneath," "above," "above," "front," "back," and the like. Such spatially relative terms are intended to include different orientations of the device in use or operation other than the orientation depicted in the figures. For example, if the device in the figures undergoes a positional flip or a change in posture or a change in motion, then these directional indications will also change accordingly. For example, an element described as "below" or "below" another element or feature will subsequently be oriented as "above" or "above" another element or feature. Thus, the example term "below" can include both above and below orientations. The device may be oriented otherwise (rotated 90 degrees or in other orientations) and the spatially relative descriptors used herein will be interpreted accordingly.

[0033] As shown in Figures 1 to 6, the present application provides an air path distribution component, which is connected to two adsorption oxygen-generating components of the oxygen-generating mechanism, including: a stacked first air path plate 10, a second air path plate 20 and a third air path plate 30, wherein a first air path 11 and a second air path 12 are formed between the first air path plate 10 and the second air path plate 20, and the first air path 11 and the second air path 12 are respectively connected to the two adsorption oxygen-generating components; a third air path 31 is formed between the third air path plate 30 and the second air path plate 20, and the third air path 31 is respectively connected to the first air path 11 and the second air path 12, and an output end of the third air path 31 is used for storing or discharging oxygen; a distribution air path 40, which is respectively connected to the first air path 11 and the second air path 12. When oxygen is introduced into the first air path 11, the oxygen flushes the adsorption oxygen-generating component corresponding to the second air path 12 through the distribution air path 40. When oxygen is introduced into the second air path 12, the oxygen flushes the adsorption oxygen-generating component corresponding to the first air path 11 through the distribution air path 40. The gas path formed by this arrangement can meet the needs of adsorption oxygen production and waste gas treatment. It does not require pipe connection processing, has fewer parts, and reduces the use and assembly requirements of parts. It has high space utilization and better maintainability and detectability. This application effectively solves the problems of the existing technology that use multiple pipes and joints for gas path distribution within the oxygen production mechanism, which has low space utilization and poor maintainability.

[0034] It should be noted that the circulation pipeline after oxygen preparation is the most important for adsorption oxygen production. The existing technology often uses gas guide hoses, tracheal joints, multi-way pipe joints, battery valves and other accessories to connect to complete the gas circuit. The gas circuit ultimately needs to store a part in the oxygen storage device and provide a part to the outside. The internal air tightness requirements are high. Once a leak occurs, it is easy to cause insufficient oxygen supply and some air to be mixed in it, affecting the oxygen content. The pipes and joints that are connected multiple times in the commonly used technology are prone to damage and leakage in actual applications, which will not only increase the resistance of the air flow, resulting in the inability to discharge the prepared oxygen in a timely and effective manner, but also increase the workload of assembly and manufacturing, and the messy pipes and joints also affect the convenience of gas circuit maintenance and detection. The gas circuit in this application generally refers to channels, passages, etc. through which gas can pass. Its channels or passages are not limited to only gas, but can also be liquids or other fluids that can flow.

[0035] Specifically, by applying the technical solution of this embodiment, the first gas path 11 and the second gas path 12 can alternately supply oxygen, allowing the two adsorption oxygen-generating components of the oxygen-generating mechanism to alternately produce oxygen, one producing oxygen and the other removing impurity gases. This ensures that the oxygen concentration passing through the gas distribution assembly meets the required level. The distribution gas path 40 is configured to control the flow direction of the airflow in the gas distribution assembly, so that the first gas path 11 supplies oxygen and the second gas path 12 flushes the corresponding adsorption oxygen-generating component, or vice versa. This configuration provides a higher degree of integration, a more compact structure, and reduced assembly difficulty, making it more suitable for the manufacture of gas distribution assemblies.

[0036] It should be noted that in this embodiment, no pipes or joints are used. Each gas path is formed by the cooperation of multiple gas path plates. Therefore, there is no need to consider the pipe and joint restrictions of the gas path connection. The structure can be more compact and occupy less space. It is more suitable for portable oxygen production mechanisms and is convenient for users to transfer and carry.

[0037] As shown in Figures 4 to 6 , in the technical solution of this embodiment, a first one-way valve 13 is provided between the first gas path 11 and the third gas path 31, and a second one-way valve 14 is provided between the second gas path 12 and the third gas path 31. The output end of the distribution gas path 40 is connected to the input end of the first one-way valve 13 and the input end of the second one-way valve 14, respectively. The provision of the first one-way valve 13 and the second one-way valve 14 ensures the directional delivery of oxygen, preventing oxygen backflow, which could cause impurities to enter the gas path and affect the purity of oxygen stored or subsequently delivered by the gas path.

[0038] It should be noted that both the first one-way valve 13 and the second one-way valve 14 are one-way valve plates. The one-way valve plate has a rotary body structure, and the cross-section on any plane along its axis is in the shape of the Chinese character "tu", that is, it specifically includes a column, a bottom plate connected to one end of the column, and a limiting plate arranged in the middle position of the column. The length of the column between the limiting plate and the bottom plate is greater than the distance between the surface of the second gas path plate 20 facing the first gas path plate 10 and the surface of the third gas path plate 30 facing the bottom plate. And in the case of no oxygen access, the bottom plate is in contact with the surface of the second gas path plate 20 away from the first gas path plate 10 to form a seal. When oxygen is accessed, under the action of air pressure, the bottom plate is pushed away from the second gas path plate 20 to form an opening, and then oxygen is transported through the gap between the column and the corresponding through hole arranged on the second gas path plate. Further, the trigger air pressures of the first one-way valve 13 and the second one-way valve 14 are set the same.

[0039] Further, as shown in FIG. 4, in the technical solution of this embodiment, the input end of the distribution gas path 40 is connected to the third gas path 31 through the first control valve 41. The setting of the first control valve 41 is used for the on-off control of the distribution gas path 40. Such a setting realizes that when rapid oxygen supply is required, direct oxygen supply can be adopted for oxygen supply, removing the oxygen amount required for flushing another adsorption oxygen generation component, so as to quickly achieve the purpose of oxygen storage and supply. Such a setting can also quickly increase and average the oxygen pressure in the overall gas path, reduce the startup time, and the use effect is better. Further still, the first control valve 41 is a solenoid valve. In the overall oxygen generation mechanism, a control component can be set, and the on-off of the first control valve 41 is controlled in real time by monitoring the oxygen pressure in the gas path through the control component.

[0040] Specifically, in the technical solution of this embodiment, the first control valve 41 is a two-position two-way solenoid valve, and a direct-acting solenoid valve can be adopted. The specific principle is that when powered on, the electromagnetic coil generates an electromagnetic force to make the valve core move, and the passages at both ends of the valve core are connected, thus opening the distribution gas path 40. When powered off, the electromagnetic force disappears, and the spring pushes the valve core back to its original position, and the passages at both ends are isolated, that is, the valve is closed.

[0041] As shown in FIGS. 4 and 6, in the technical solution of this embodiment, the distribution gas path 40 is provided with two output ports, and the third one-way valve 42 and the fourth one-way valve 43 are respectively arranged at the two output ports. The output end of the third one-way valve 42 is connected to the first gas path 11, and the fourth one-way valve 43 is connected to the second gas path 12. The settings of the third one-way valve 42 and the fourth one-way valve 43 mainly transport the oxygen for flushing and cleaning in a directional manner, and also prevent the impurity gas flow from entering the third gas path 31 through the adsorption oxygen generation component that does not generate oxygen.

[0042] It should be noted that the triggering air pressure of the third one-way valve 42 and the fourth one-way valve 43 is less than or equal to the triggering air pressure of the first one-way valve 13 and the second one-way valve 14. This setting makes the first air path 11 or the second air path 12 through which oxygen is introduced have a relative air pressure, so that after the oxygen enters the distribution air path 40, the corresponding third one-way valve 42 or the fourth one-way valve 43 will not be directly triggered, that is, the distribution air path 40 will only open one of the one-way valves, so that the oxygen for flushing and cleaning is transported in a direction, thereby achieving the purpose of cleaning and washing the corresponding adsorption oxygen production components.

[0043] Specifically, the third one-way valve 42 and the fourth one-way valve 43 are both one-way valve discs. The specific structure of the one-way valve discs is similar to that of the first one-way valve 13 and the second one-way valve 14, and will not be further described here. Taking the third one-way valve 42 as an example, the length of the column between its limit plate and the base plate is greater than the distance between the side of the second gas manifold plate 20 facing the third gas manifold plate 30 and the side of the first gas manifold plate 10 facing the base plate. In the absence of oxygen supply, the base plate and the side of the second gas manifold plate 20 facing away from the third gas manifold plate 30 are in contact, forming a seal. When oxygen is supplied, the air pressure pushes the base plate away from the second gas manifold plate 20, forming an opening, and oxygen is then transported through the gap between the column and the corresponding perforation provided on the second gas manifold plate.

[0044] Furthermore, as shown in FIG6 , in the technical solution of this embodiment, the distribution gas path 40 is formed between the third gas path plate 30 and the second gas path plate 20 . This centralized structure avoids more material assembly, has higher integration, and has higher space utilization.

[0045] It should be noted that in one specific embodiment, the main body of the second gas manifold plate 20 is a planar plate. The first and second gas paths 11 and 12 are grooves in the first gas manifold plate 10. No grooves are provided on the second gas manifold plate 20. Specifically, one surface of the second gas manifold plate 20 is directly connected to the grooves in the first gas manifold plate 10. This reduces the processing requirements for the second gas manifold plate 20, facilitates production and assembly, and can serve as an assembly reference. Furthermore, the third gas path 31 and the distribution gas path 40 are grooves in the third gas manifold plate 30, forming a gas path directly with the side of the second gas manifold plate 20 facing away from the first gas manifold plate 10.

[0046] As shown in Figures 4 and 5, in the technical solution of this embodiment, a second control valve 50 is provided between the first gas path 11 and the second gas path 12 for direct communication. The second control valve 50 is provided to control the entire gas path after the oxygen storage link and the oxygen supply link are balanced and stable. Specifically, for example, when the first gas line 11 supplies oxygen and the second gas line 12 flushes the corresponding adsorption oxygen production component, the first gas line 11 continues to supply oxygen until the second gas line 12 is flushed. At this time, the gas line distribution component can close the flushing port of the second gas line 12. At this time, the adsorption oxygen production component corresponding to the second gas line 12 has completed the preparation for adsorption oxygen production, and there is balanced oxygen in the entire gas line. By opening and closing the second control valve 50, the oxygen amount in the first gas line 11 and the second gas line 12 is balanced. Then, the second control valve 50 is closed, closing the inlet of the first gas line 11 and opening the inlet of the second gas line 12. The adsorption oxygen production component in the second gas line 12 begins to produce oxygen into the second gas line 12 and maintains the output and storage of the third gas line 31. At this time, the first control valve 41 and the second control valve 50 are opened in sequence, so that the original oxygen in the first gas line 11 directly enters its corresponding adsorption oxygen production component for flushing, thereby preventing impurity gases remaining in the adsorption oxygen production component corresponding to the first gas line 11 from entering the entire gas line.

[0047] As shown in Figures 1 to 3 and Figures 5 to 6, in the technical solution of this embodiment, the gas path distribution assembly includes a valve seat 60, which is connected to the side of the third gas path plate 30 away from the second gas path plate 20, and the first control valve 41 and the second control valve 50 are fixed in the valve seat 60. The valve seat 60 is used to arrange connecting passages connecting the gas paths, and to achieve the on-off function of each gas path through the connecting passages and the cooperation with each control valve. Specifically, as shown in Figure 2, taking the second control valve 50 as an example, two connecting passages and a main passage are formed in the valve seat 60. The two connecting passages are both connected to the main passage, and the two connecting passages are respectively connected to the first gas path 11 and the second gas path 12. The valve core of the second control valve 50 is slidably arranged in the main passage. The two connecting passages are connected or isolated by the sliding of the valve core of the second control valve 50.

[0048] As shown in Figures 1 to 3, in the technical solution of this embodiment, the inlet ends of the first gas path 11 and the second gas path 12 are both located on a side of the second gas path plate 20 away from the first gas path plate 10, and are also separated from the valve seat 60. The two adsorption oxygen generators are located in the space formed by the valve seat 60 and the second gas path plate 20. This arrangement makes the installation location of the adsorption oxygen generator more compact, more conducive to space utilization, and suitable for use in portable oxygen generators.

[0049] In a specific embodiment, two air inlet heads 21 are correspondingly provided on the second air manifold plate 20. Because the adsorption oxygen generator assembly is disposed in the space formed by the second air manifold plate 20 and the valve seat 60, the air inlet position is located on the side of the second air manifold plate 20 away from the first air manifold plate 10. To save space and improve integration, two air inlet heads 21 are provided so that the generated oxygen or oxygen used for flushing can enter the corresponding position through the air inlet heads 21. The bottom of the air inlet head 21 can be detachably connected to the end of the adsorption oxygen generator assembly, specifically, it can be a threaded connection. The air inlet head 21 is thicker along the thickness direction of the second air manifold plate 20, and a protrusion is formed on the side facing the first air manifold plate 10. To accommodate this protrusion, the first air manifold plate 10 is provided with a cover 15 at the corresponding position. The cover 15 can surround the protrusion to form a buffer area, which provides a buffering effect after oxygen enters. The oxygen volume generates a more stable air pressure to subsequently open the one-way valve. This arrangement prevents the kinetic energy carried by the oxygen flow from directly impacting the one-way valve, causing instability in the subsequent oxygen supply operation, and has a good effect on the control and monitoring of oxygen content. It also prevents the oxygen at the flushing position from not flushing some impurities due to excessive oxygen flow rate, which can generate impurity gas during subsequent oxygen supply and reduce the oxygen content. It should be noted that the space formed by the cover 15 can connect the first air path 11 and the air inlet head 21, and can specifically be shaped like a spoon.

[0050] As shown in Figure 3, in the technical solution of this embodiment, a first seal 71 is provided between the first and second gas circuit plates 10 and 20. The first seal 71 is adapted to the first and second gas circuits 11 and 12. A second seal 72 is provided between the second and third gas circuit plates 20 and 30. The second seal 72 is adapted to the third gas circuit 31. The first and second seals 71 and 72 are provided to seal the gas circuits after they are formed. The adaptation of the first seal 71 to the first and second gas circuits 11 and 12, and the adaptation of the second seal 72 to the third gas circuit 31, also serve as a separation function, preventing the possibility of leakage between the gas circuits due to the overall blockade, which could lead to the failure of functions such as flushing or sealing adjustment.

[0051] It should be noted that, in a specific embodiment, the third gas path 31 and the distribution gas path 40 are grooves on the third gas path plate 30, and when they directly form a gas path with the side of the second gas path plate 20 away from the first gas path plate 10, the shape of the second sealing member 72 is adapted to the third gas path 31 and the distribution gas path 40 respectively. Furthermore, a plurality of mounting holes 32 are provided on a side of the third gas circuit plate 30 away from the second gas circuit plate 20. The plurality of mounting holes 32 correspond to the installation of a plurality of control valves. Specifically, the two passages corresponding to the first control valve 41 on the valve seat 60 pass through the mounting holes 32 and are connected with the through holes on the second gas circuit plate 20, so that oxygen can enter the distribution gas circuit 40 from the third gas circuit 31; the two passages corresponding to the second control valve 50 on the valve seat 60 are connected with the first gas circuit 11 and the second gas circuit 12 respectively through the mounting holes 32 and the through holes on the second gas circuit plate 20 in sequence; the third control valve 313 is connected with the oxygen storage circuit 311 and the oxygen exhaust circuit 312 respectively through the two passages corresponding to the valve seat 60 through the mounting holes 32.

[0052] As shown in Figures 1 to 6, in the technical solution of this embodiment, the third gas circuit 31 includes an oxygen storage circuit 311 and an oxygen exhaust circuit 312. The oxygen storage circuit 311 is connected to the first gas circuit 11 and the second gas circuit 12 respectively, and the oxygen exhaust circuit 312 is connected to the oxygen storage circuit 311 through the third control valve 313. This arrangement can, on the one hand, meet the oxygen storage needs of the oxygen storage structure 314, play a role in adjusting and supplementing the subsequent oxygen supply process, and stabilize the exhaust pressure of oxygen when supplying and discharging oxygen to the outside, so as to achieve uniform oxygen supply. In addition, when the functions of the first gas circuit 11 and the second gas circuit 12 are switched, multiple control valves can be used to control the oxygen storage structure 314 to supply oxygen independently. The oxygen storage structure 314 can specifically be a dedicated tank with a press.

[0053] In an optional embodiment, the gas distribution component is mainly used in the adsorption oxygen production industry. Since adsorption oxygen production requires a certain gas pressure to maintain a certain oxygen concentration, and usually after oxygen adsorption, the adsorption oxygen production component will have residual nitrogen and other waste gases. Correspondingly, maintaining the oxygen production pressure and exhausting the waste gas are achieved through gas circuit control. Specifically, oxygen enters the gas distribution component through the air inlet head 21 set on the second gas circuit plate 20. Under the appropriate pressure and oxygen concentration conditions, the oxygen first enters the oxygen storage structure 314 through the third gas circuit 31. After storing a certain amount of oxygen, the remaining part is discharged to the user through the oxygen exhaust circuit 312, and the other part returns to another adsorption oxygen production component through the distribution gas circuit 40 to flush the remaining waste gas and discharge the waste gas. For example, the principle of the entire switching shown in the schematic diagram Figure 4, the entire gas circuit switching and control are controlled by the on and off of multiple electromagnetic control valves.

[0054] In this optional embodiment, the following parts are mainly included: a first air circuit board 10, a first one-way valve 13, a second one-way valve 14, a second air circuit board 20, a third air circuit board 30, a third control valve 313, an oxygen storage structure 314, a distribution air circuit 40, a first control valve 41, a third one-way valve 42, a fourth one-way valve 43, a second control valve 50, a valve seat 60, a first seal 71, and a second seal 72.

[0055] When oxygen begins to enter the first gas path 11, all control valves are in the disconnected state. After the oxygen passes through the first gas path 11 formed by the first gas path plate 10 and the second gas path plate 20 pressing the first seal 71, it pushes open the first one-way valve 13 and enters the third gas path 31 formed by the second gas path plate 20 and the third gas path plate 30 pressing the second seal 72. The oxygen passes through the oxygen storage path 311 of the third gas path 31 and then enters the oxygen storage structure 314. When the oxygen in the oxygen storage structure 314 reaches a certain pressure, the third control valve 313 is opened, and the oxygen flow in the third gas path 31 passes through the oxygen exhaust path 312 to the exhaust outlet for the user to use. Then the third control valve 313 is disconnected, the first gas path 11 continues to supply oxygen, and the pressure in the oxygen storage structure 314 rises again.

[0056] When the air pressure in the air path reaches the set value, the first control valve 41 is opened, and the compressed oxygen flows through the distribution air path 40, opens the fourth check valve 43, and enters the second air path 12, flushing the waste gas remaining in the oxygen generator in the corresponding adsorption oxygen generator component. When the waste gas of this adsorption oxygen generator component is discharged, during this process, because the pressure of the downstream section of the first check valve 13 and the third check valve 42 is at the set value, the pressure of the flushing part does not reach the set value, and the air flow cannot flow back.

[0057] After the exhaust gas is removed, the adsorption oxygen generator in the first air path 11 resumes supplying oxygen, and the air path is filled with oxygen. The second air path 12 is disconnected from its corresponding adsorption oxygen generator, and the second control valve 50 is opened. After the air pressure in the first and second air paths 11 and 12 gradually equalizes, the second control valve 50 opens. The first air path 11 then disconnects from its corresponding adsorption oxygen generator, while the second air path 12 connects to the adsorption oxygen generator. This cycle then begins: the adsorption oxygen generator corresponding to the second air path 12 begins producing oxygen, while the adsorption oxygen generator corresponding to the first air path 11 exhausts exhaust gas. This cycle repeats, providing the user with pulsed high-concentration oxygen.

[0058] The technical solution of the above optional embodiment can solve the problem of how to save the space occupied by the gas circuit control module, and the various gas circuit interfaces and wiring are clearly planned to facilitate maintenance and inspection operations.

[0059] The structure comprises a gas distribution system comprising a valve body portion at the bottom, which houses the first, second, and third control valves 41, 50, and 313, and a diversion section for each gas path, wherein the valve body portion also includes a valve seat 60. The diversion section comprises multiple gas path plates, forming multiple gas paths. These paths are connected via one-way valve plates or control valves, and each gas path is primarily divided into two layers, each layer approximately on a single plane. This provides a clear gas path and makes it easy to identify each part of the path. The control valves are all solenoid valves and can be uniformly mounted on the valve seat 60 connected to the diversion section. The solenoid valves have uniform wiring directions, resulting in a relatively neat overall structure and ease of maintenance.

[0060] On the second aspect, the present application provides an oxygen production mechanism, including an air path distribution component and two adsorption oxygen production components, the air path distribution component is the air path distribution component of any of the above-mentioned embodiments, and the first air path 11 and the second air path 12 of the air path distribution component are respectively connected to the two adsorption oxygen production components. The application of the above-mentioned air path distribution component has a compact structure and is easy to maintain, and takes into account the flushing of the adsorption oxygen production component required by the adsorption oxygen production method, and can provide high-concentration oxygen to the user in a pulsed manner. The oxygen output is more stable and reliable, and it is easy to disassemble and maintain later. Specifically, the oxygen production mechanism can be a portable oxygen concentrator, an oxygen production part for oxygen supply in medical equipment, or a portable oxygen-using equipment such as welding equipment.

[0061] In a third aspect, the present application provides a medical device comprising an oxygen concentrator as described in the above-described embodiment. A medical device employing the above-described oxygen concentrator can provide a user with pulsed high-concentration oxygen to ensure oxygen demand. Specifically, the device may be a portable oxygen concentrator, anesthesia machine, ventilator, cardiopulmonary resuscitation machine, high-flow respiratory humidification therapy device, or the like.

[0062] In a fourth aspect, the present application provides an adsorption oxygen production method, which uses the gas distribution assembly in the above embodiment, including the following steps:

[0063] Oxygen is introduced into the first gas path 11 through the adsorption oxygen production component, and the first control valve 41, the second control valve 50 and the third control valve 313 are all in the disconnected state;

[0064] After passing through the first gas path 11, the oxygen opens the first one-way valve 13, enters the third gas path 31, and enters the oxygen storage structure 314 through the oxygen storage path 311 for storage; thus, the oxygen storage structure 314 stores a preset value of oxygen.

[0065] When the oxygen in the oxygen storage structure 314 reaches a certain pressure, the third control valve 313 is turned on, and the oxygen flow in the third gas path 31 passes through the oxygen exhaust path 312 to the exhaust outlet for use by the user;

[0066] The third control valve 313 is disconnected, the first gas path 11 continues to supply oxygen, and the pressure of the oxygen storage structure 314 rises again;

[0067] When the air pressure in the gas circuit reaches the set value, the first control valve 41 is connected, and the compressed oxygen passes through the distribution gas circuit 40, opens the fourth one-way valve 43 and enters the second gas circuit 12; the oxygen enters its corresponding adsorption oxygen production component through the second gas circuit 12 for flushing and exhaust gas discharge.

[0068] The adsorption oxygen production component of the first gas path 11 continues to supply oxygen. After the oxygen in the gas path reaches a predetermined pressure, the second gas path 12 cuts off the connection with the adsorption oxygen production component corresponding to it, and the second control valve 50 is connected;

[0069] After the air pressures in the first air path 11 and the second air path 12 gradually become the same, the second control valve 50 is disconnected;

[0070] The first air path 11 is first disconnected from its corresponding adsorption oxygen generator, and the second air path 12 is then connected to the adsorption oxygen generator, which then introduces oxygen into the first air path 11. The second cycle begins, with the adsorption oxygen generator corresponding to the second air path 12 beginning to produce oxygen, and the adsorption oxygen generator corresponding to the first air path 11 emitting exhaust gas. This process is repeated, providing the user with pulsed high-concentration oxygen. This oxygen production process cycles through oxygen production, supply, storage, and exhaust gas flushing, providing a stable method for producing and supplying oxygen that can be applied to corresponding devices to provide better oxygen supply.

[0071] It should be understood that the terms used herein are for the purpose of describing specific example embodiments only and are not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms "one", "an" and "said" as used herein may also be meant to include plural forms. The terms "comprise", "include", "contain" and "have" are inclusive and therefore specify the presence of stated features, steps, operations, elements and / or parts, but do not exclude the presence or addition of one or more other features, steps, operations, elements, parts, and / or combinations thereof. The method steps, processes, and operations described herein are not to be construed as necessarily requiring them to be performed in the specific order described or illustrated, unless the order of execution is clearly indicated. It should also be understood that additional or alternative steps may be used.

[0072] Although the terms first, second, third, etc. can be used in the text to describe multiple elements, components, regions, layers and / or sections, these elements, components, regions, layers and / or sections should not be limited by these terms. These terms can only be used to distinguish an element, component, region, layer or section from another region, layer or section. Unless the context clearly indicates otherwise, terms such as "first", "second" and other numerical terms do not imply order or sequence when used in the text. Therefore, the first element, component, region, layer or section discussed below can be referred to as the second element, component, region, layer or section without departing from the teaching of the example embodiments.

[0073] The foregoing is merely a list of specific embodiments of the present application, intended to enable those skilled in the art to understand or implement the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application is not limited to the embodiments shown herein, but is intended to conform to the broadest scope consistent with the principles and novel features of the present application.

Claims

1. An air path distribution component is connected to two adsorption oxygen generation components of an oxygen generation mechanism, and is characterized in that Comprising: Overlapped first gas path plate (10), second gas path plate (20) and third gas path plate (30), a first gas path (11) and a second gas path (12) are formed between the first gas path plate (10) and the second gas path plate (20), and the first gas path (11) and the second gas path (12) are respectively communicated with two adsorption oxygen generation assemblies; A third gas path (31) is formed between the third gas path plate (30) and the second gas path plate (20), the third gas path (31) is respectively communicated with the first gas path (11) and the second gas path (12), and the output end of the third gas path (31) is used for storing oxygen or discharging oxygen; A distribution gas path (40), which is respectively communicated with the first gas path (11) and the second gas path (12). When oxygen is introduced into the first gas path (11), the oxygen flushes the adsorption oxygen generation assembly corresponding to the second gas path (12) through the distribution gas path (40). When oxygen is introduced into the second gas path (12), the oxygen flushes the adsorption oxygen generation assembly corresponding to the first gas path (11) through the distribution gas path (40).

2. The gas path distribution component according to claim 1, wherein A first one-way valve (13) is arranged between the first gas path (11) and the third gas path (31), a second one-way valve (14) is arranged between the second gas path (12) and the third gas path (31), and the output end of the distribution gas path (40) is respectively communicated with the input end of the first one-way valve (13) and the input end of the second one-way valve (14).

3. The air path distribution component according to claim 2, characterized in that, The input end of the distribution gas path (40) is communicated with the third gas path (31) through a first control valve (41).

4. The air path distribution component according to claim 3, characterized in that, The distribution gas path (40) is provided with two output ports, and a third one-way valve (42) and a fourth one-way valve (43) are respectively arranged at the two output ports. The output end of the third one-way valve (42) is communicated with the first gas path (11), and the fourth one-way valve (43) is communicated with the second gas path (12).

5. The gas path distribution component according to claim 3, characterized in that, A second control valve (50) for direct communication is arranged between the first gas path (11) and the second gas path (12).

6. The gas path distribution component according to claim 5, characterized in that, The gas path distribution assembly includes a valve seat (60), the valve seat (60) is connected to the side of the third gas path plate (30) away from the second gas path plate (20), and the first control valve (41) and the second control valve (50) are fixed in the valve seat (60).

7. The gas path distribution component according to claim 6, characterized in that, The inlet ends of the first gas path (11) and the second gas path (12) are both arranged on the side of the second gas path plate (20) away from the first gas path plate (10), and the inlet ends of the first gas path (11) and the second gas path (12) are both separated from the valve seat (60), and the two adsorption oxygen generation assemblies are located in the space formed by the valve seat (60) and the second gas path plate (20).

8. The air path distribution component according to any one of claims 1 to 7, characterized in that A first seal (71) is provided between the first gas path plate (10) and the second gas path plate (20), and the first seal (71) is adapted to the first gas path (11) and the second gas path (12). A second seal (72) is provided between the second gas path plate (20) and the third gas path plate (30), and the second seal (72) is adapted to the third gas path (31).

9. The air path distribution component according to any one of claims 1 to 7, characterized in that The third gas path (31) includes an oxygen storage gas path (311) and an oxygen discharge gas path (312). The oxygen storage gas path (311) is respectively communicated with the first gas path (11) and the second gas path (12), and the oxygen discharge gas path (312) is communicated with the oxygen storage gas path (311) through a third control valve (313).

10. An oxygen generation mechanism, characterized in that, It includes a gas path distribution assembly and two adsorption oxygen generation assemblies. The gas path distribution assembly is the gas path distribution assembly according to any one of claims 1 to 9. The first gas path (11) and the second gas path (12) of the gas path distribution assembly are respectively communicated with the two adsorption oxygen generation assemblies.

11. A medical device, characterized in that, The medical device includes an oxygen generation mechanism as described in claim 10.

Images